(CNN) – Protesters rallying against police brutality burned an American flag during their demonstration in Portland, Oregon. What makes this unusual is where the protesters actually got that flag.

They marched from PSU to the Multnomah County courthouse. Blocking traffic on Fourth Avenue. Police kept the cars out.

Then they headed to the justice center on third. Where they blocked traffic again. Police again blocking the intersection, but keeping their distance. Names were called. Language got rough but there was nothing physical between protesters and police.

It almost got physical though between supporters of don’t shoot Portland and the supporters of the Malheur refuge stand -off, still protesting outside the federal courthouse.

The Bundy supporters even shared their barbecue with them but when one of them shared an American flag with the “don’t shoot crowd”. Well that’s when the protest got hotter.